Hello, Thomas and me had a short talk about PXE (not) booting HP ProLiant servers, that are connected through a Cisco switch at the SANE conference.
Our problem was that the DHCP server did not get any requests form the client machine that was attempting a PXE boot. All ports were on auto-negotiation. Setting the link speed of both the switch port and the Ethernet Boot Agent to "100Mbps Full" solved the problem, but that was not really what we wanted. So we did some more investigation, and found the following solution: If you are experiencing the PXE/DHCP problem described above, you are probably have VLANs configured. Disable spanning tree on the switch ports or disable the PAgP (Port Aggregation Protocol). If both are on, you are in trouble. Regards, Philipp
